Organisation and shape of micellar solutions of block copolymers

Diblock copolymers of polymethacrylic acid sodium salt, forming the hair, and styrene derivatives have been studied in aqueous solutions by SANS and SAXS. The influence of both the chemical nature and the length of the hydrophobic bloxk on the size and shape of micelles have been investigated. The m...

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Bibliographic Details
Published inPhysica. B, Condensed matter Vol. 234; pp. 268 - 270
Main Authors Gaspard, J.P., Creutz, S., Bouchat, Ph, Jérôme, R., Cohen Stuart, M.
Format Journal Article
LanguageEnglish
Published Elsevier B.V 01.06.1997
Subjects
Laboratorium voor Fysische chemie en Kolloïdkunde
Micelles
Physical Chemistry and Colloid Science
Polymers
Small-angle neutron scattering
Surfactants
Small-angle neutron scattering
Polymers
Surfactants
Micelles
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Summary:Diblock copolymers of polymethacrylic acid sodium salt, forming the hair, and styrene derivatives have been studied in aqueous solutions by SANS and SAXS. The influence of both the chemical nature and the length of the hydrophobic bloxk on the size and shape of micelles have been investigated. The micellar core size is in agreement with the theoretical evaluation for copolymers with a short hydrophobic sequence. In contrast, in case of larger hydrophobic blocks, the measured size is incompatible with a star-like model. Various hypotheses are presented for the latter.
ISSN:0921-4526
1873-2135
DOI:10.1016/S0921-4526(96)00952-0